Wong Chuan Siew & Sons Excavator Repair, Service & Parts.

05/10/2023

Service & Repair a Custom modified Excavator Mulcher for forestry industry.

Handcrafted and powered with a Hitachi EX 200.1 Travel Gear Box. This is the most verstile mulching attachment in the industry. Simply robust, tough and durable.

WhatsApp:
Mo Heng +6012 4653723
Mo Wei +6016 5362289

09/08/2023

Hitachi Zaxis 200-5G in the house.

Major & minor maintenance job:
✅ Bottom & top track rollers
✅ Travel gear box floating seals
✅ Fan belt
✅ Arm pump seal kits
✅ Boom seal kits

P/S: We use only original Hallite seal kits

Do you know where the word ‘Zaxis’ in Hitachi excavator model names comes from?

Z-axis is the third axis, usually representing depth of a three-dimensional grid, chart, or graph in the Cartesian coordinate system. Hitachi has earned a reputation for producing the most reliable and durable excavators in the industry. Thanks to their fuel-efficient technology and superior hydraulic system, Hitachi excavators are highly productive and fuel-efficient.

WhatsApp:
Mo Heng +6012 4653723
Mo Wei +6016 5362289

03/08/2023

We’re all broken machines,
crude and mean,
trying to dismantle each other
to see how we work.

We are all switches and levers.
We are sometimes broken machines
who needs repair
to feel like we are still good.

Each of us are genius in our own right. 😇

08/06/2023

08/06/2023

Custom modification of Mitsubishi engine 4D34:

- Turbocharger fitted✅
- Polished Crankshaft✅
- Engine block rebuilding✅
- Piston resizing (oversized)✅
- Linear rebuilding✅
- Overhauled & Tuned✅

Going to install this beast into Mitsubishi 110 L8 excavator.

WhatsApp:
Mo Heng +6012 4653723
Mo Wei +6016 5362289

30/03/2023

Installation of K3V63 Hydraulic Main Pump into MS110L2 excavator.

WhatsApp:
Mo Heng +6012 4653723
Mo Wei +6016 5362289

08/02/2023

Fixing mitsubishi 4D31 turbo fitted engine. Engine block exploded leaving a big hole on the block body due to loosen piston rods.

Have to drag this beast from deep forest back to the workshop.

WhatsApp:
Mo Heng +6012 4653723
Mo Wei +6016 5362289

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01/12/2022

Installation of Mitsubishi 4d31 engine into Mitsubishi 110L2.

Let's take a closer look at this engine.

"4" in 4D engine means in-line 4 cylinders, D means diesel and 4-stroke is adopted in 4D engine.

Four stroke means that the explosion process such as inhalation, compression, combustion and evacuation is performed in four steps.

In 1978, 4D30 engine was launched. After that it has been improved to 4D31 and 4D32.

WhatsApp:
Mo Heng +6012 4653723
Mo Wei +6016 5362289

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01/12/2022

Installation of Mitsubishi 4d31 engine into Mitsubishi 110L2.

Let's take a closer look at this engine.

"4" in 4D engine means in-line 4 cylinders, D means diesel and 4-stroke is adopted in 4D engine. Four stroke means that the explosion process such as inhalation, compression, combustion and evacuation is performed in four steps.

In 1978, 4D30 engine was launched. After that it has been improved to 4D31 and 4D32.

WhatsApp:
Mo Heng +6012 4653723
Mo Wei +6016 5362289

#

25/10/2022

What actually happens when the swing motor starts to leak?

If you find that your swing motor leaks, you can repair it or buy a new one. Whether it is repairable depends largely on the scale of the leak. Sometimes it is not necessary to buy a whole new motor. You only need to replace a few of its components.

A damaged bearing can be another cause of leakage. It can be damaged inner or outer cylindrical rings. In this case the inner ring is shattered with damaged rollers. Among other reason due to overuse or lack of lubrication. For example, gear oil can be used as a lubricant and done with a grease ni**le. When gears are fitted at the factory, the bearings are already filled with grease and remain so for the life of the engine. A damaged bearing can contribute to a misalignment of the shaft of the swing motor. And this, in turn, allows oil to leak from the seal. If the leakage is too great, the consequence could be the failure of the entire swing motor. In order to prevent this, it is worth replacing the seal and bearing with a new one as soon as possible.

WhatsApp:
Mo Heng +6012 4653723
Mo Wei +6016 5362289

29/09/2022

Throwback last week.
Fully overhauled Mitsubishi MS110L3 sold & collected by customer.

WhatsApp:
Mo Heng +6012 4653723
Mo Wei +6016 5362289

07/09/2022

Installation of new travel gear box for Sumitomo FJ2-265.

Happy customer test driving his machine is our greatest satisfaction 😊

Travel gear box are subject to frequent failures. Typically, some most common causes of failure includes broken shaft, intermediate gear or seal. If we react relatively quickly and replace the broken part, then we should not have major problems.

If we ignore the symptoms – crackling, oil leakage, power drop – then we can bring about the total destruction of the travel gear box. Due to the scale of inside damage, it will not be possible to repair it. The cost of repair in some cases will significantly exceed the purchase of used or new travel gear box in good condition.

The most common cause of failure is the lack of transmission oil, because it tends to outwear quickly. Lack of oil in the travel gearbox or its low condition causes seizure of bearings, wear of attacking rollers, deformation of teeth and even bursting of the body. It is therefore necessary to constantly monitor its condition because in this way we will avoid unnecessary damage.

The last of the key factors affecting the failure of the travel final drive is too much oil in the hub, because owners or operators often fill the oil with the “full” method. When the temperature rises, the oil begins to increase in volume. This causes the seals to be pushed out, resulting in an oil leak or bursting of the body.
Seals should also be the control subject. Unfortunately, we have no influence of seals outwear which causes oil leakage and consequent seizing of the bearings.

So, we just need to check regularly that our machine is working properly.

WhatsApp:
Mo Heng +6012 4653723
Mo Wei +6016 5362289